Free Habit Calculators

Sleep Loss Calculator

Late-night scrolling doesn't just steal time — it steals sleep. See how many hours and full nights you lose each year.

6

🌙

19

hours of sleep lost per month

📅

235

hours lost per year

😴

29

full nights lost per year

705

total hours over 3 years

What better sleep gives you

Reclaiming those hours means:

More energy and better mood throughout the day

🎯

165 extra hours of deep focus per year

💪

Energy for 157 more workout sessions

Why sleep and screen time are connected

Scrolling before bed is one of the most common bad habits — and one of the most damaging. Blue light suppresses melatonin, stimulating content keeps your brain alert, and the 'just one more video' loop easily steals 30–60 minutes. Poor sleep then makes you tired, unfocused, and more likely to scroll again the next day. It's a vicious cycle.

How this calculator works

Enter how many minutes you spend on your phone before sleep, on how many nights per week, and for how many years. We convert that into hours of sleep lost per month and year, full nights of rest missed annually, and the total over your habit's lifetime.

Tips for better sleep hygiene

  • Charge your phone outside the bedroom — use a traditional alarm clock instead.
  • Set a 'digital sunset' 60 minutes before bed: no screens, dim lights, calm activity.
  • If you must use your phone, enable night mode and stick to passive content like audiobooks.
  • Replace the bedtime scroll with a fixed routine: journal, stretch, or read 10 pages.

Break the bedtime scroll cycle

The hardest moment to resist is late at night when willpower is lowest. Unhookly's AI coach is being built to support you exactly in those vulnerable moments — not with guilt, but with personalized guidance when the urge to pick up your phone hits.